Improvement in braiding-machines



s. B. SALI8BURY & J. McCAH EY Braiding Machines.

UNITED STATES PATENT OFFICE.

STEPHEN B. SALISBURY AND JOHN MGGAHEY, OF PROVIDENCE, R. I., AS- SIGNORTO NEW ENGLAND BUTT COMPANY, OF SAME PLACE.

IMPROVEMENT IN BRAlDlNG-MACHINES.

Specification describing certain Improvementsin Braiding-Machines,invented by STE- PHEN B. SALISBURY and JOHN MoOAH-EY, of the city andcounty of Providence and State of Rhode Island.

This invention relates to the stop-motion used to stop the machine whenone of its yarns or threads breaks or runs out; and its nature consistsin the shape and position of a sliding plate, catches, rocker-shaft,&c., whereby the plate is brought back to its proper place by thecarriers themselves, instead of using a spring for that purpose, thusrendering the motion much quicker, easier, and less complicated in itsparts.

Figure 1 is a top plan of a part of a braiding-machine with thestop-motion. Fig. 2 is a front elevation of the same. Fig. 3 is a bottomview of the same parts.

A is a part of a top plate of a braiding-machine, showing the channel orrun t, in which the carriers E E move. D is a light curved plate slidingon the outer edge of the plate A, being attached to it by means ofscrews passing through the slots i t; The plate D is made to extend asfar around the machine as may be desired. S S are projections made onthe inner edge of plate D, arranged to come opposite to every alternatespace between the circles of the run. These spaces should be those inwhich the carriers on each side run in toward the center of the machine.The projections S are extended far enough in to just allow the shouldersof the carrier-spindles e e to pass clear on each side when the plate Dis in the center of its motion, but near enough to the run to be hit andpushed to one side by the weights y y when clear down on theirstandards. P is a stud-slip screwed to the lower plate B of the machine,the stud standing up in front to hold the knee-lever L, which springs ona pivot on its top. The short arm Q of the knee-lever extends under theplate D, and receives a pin,which is fast in the plate, in a recess inthe end of the arm, so that when the plate slides in either direction itshall move the lever. Another arm of thekneelever, placed at rightangles to the first, has its end made in the shape of a wedge, with theline of its edge vertical, and is cut out underneath so as to form ahook to catch into a Specification forming part of Letters Patent No.130,319, dated August 6, 1872.

similar hookin areversed position on the end of the arm 0 of the leverg. The 'lever g is fastened on the outer end of the rocker-shaft N, theinner end of which holds the fork that throws the clutch F in and out ofgear. The outer end of the shaft N is held by the standard M fastened tothe bottom plate B, the inner end by another standard from another partof the same plate. The lever g is thrown back so as to keep the clutchout of gear by the torsion of the spiral spring n, one end of which isfastened to the bearing of the standard M, and the other end to thecollar 1" fast to the shaft N. R is a cross-shaft suspended from theplate Bin like manner as the shaft N, and carries on it a loose pulley,W, the clutch F, which slides on a spline fast to the shaft and thegear-wheel that runs the machine, which, not having any directconnection with the stop-motion, is not considered as requiring anydescription. The plate D is raised above the plate A by projecting lips,on which it slides so as to allow the foot-plates of the carriers E topass under the projections S without moving the plate.

The operation is as follows: To start the machine, throw the clutch Finto gear by pushing the handle of the lever 9 over to the position ofthe dotted lever g; the carriers E, be-

ing then in motion, will, as they pass the projections S in eitherdirection, push them into the center of the spaces between the circlesand throw the hook on the arm L into the hook on the arm 0 so as to holdthe lever 9 over and keep the clutch in gear. Each carrier is providedwith a tension-weight, though only two are shown, 3 y, sliding up anddown on the triangular standards 0 0 to keep the strands taut; but whena strand breaks or runs out this weight drops down to the foot of thecarrier E, and as it passes one of the projections S S pushes it over,according to whichway it may be going, so as to move the lever L andthrow the book free from the arm 0, and allow the spring 12 to throw theclutch out of gear and stop the machine. This lessens the liability ofbreaking the weights, when stopping the machine, by decreasing theresistance of the plate D, by leaving off the old spring that pushed theplate back to place.

Having thus'described the construction and operation of ourimprovements, what we claim as our invention, and desire to secure byLetters Patent, is-

1. The sliding plate D, in combination with the plate A and carriers EE, when constructed and arranged so as to be pushed into the properposition to keep the machine running by the carriers as they pass alongthe run in either direction, substantially as shown and described.

2. The combination of the knee -lever L, starting-lever g, rocker-shaftN, spring n, with the clutch F, substantially as herein set forth, andfor the purpose specified.

STEPHEN B. SALISBURY. J OHN MOCAHEY.

Witnesses BENJAMIN ARNOLD, HENRY L. LEONARD.

